Supplementation of Microbial Phytase with Safflower Meal in Rainbow Trout (Oncorhynchus mykiss): The Effects on Growth, Digestibility, Environmental, and Serum Biological Parameters

Table 4

Parameters related to feed digestibility rates of fish in the experiment.

Parameters	Control	SFM10	SFM20	SFM10 ± P1000	SFM20 ± P2000
Total digestibility rate (%)	72.45 ± 0.40	71.13 ± 0.80	71.33 ± 0.33	72.03 ± 0.60	72.73 ± 0.62
Protein digestibility rate (%)	93.75 ± 0.16^a	94.33 ± 0.26^b	94.37 ± 0.10^b	94.31 ± 0.10^b	94.67 ± 0.13^b
Lipid digestibility rate (%)	97.83 ± 0.08^c	96.53 ± 0.40^b	95.25 ± 0.61^a	97.46 ± 0.33^bc	96.34 ± 0.27^ab
Phosphorus digestibility rate (%)	79.26 ± 0.21^b	77.10 ± 0.32^a	79.03 ± 0.41^b	81.43 ± 0.63^c	84.09 ± 0.33^d

Each value refers to mean ± standard deviation. Values expressed in different exponents in the same row are statistically different from each other .